METHOD FOR PRODUCING DOPE FOR OPTICAL FILM, METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Disclosed is a method for producing a dope for an optical film, said dope containing a transparent resin, fine particles, an organic additive, and a solvent. The method is characterized by being provided with a step for introducing the aforementioned transparent resin and the aforementioned solvent into a container while stirring; a step for forming a solution from the aforementioned transparent resin and the aforementioned solvent by stirring at no less than the boiling point of the aforementioned solvent within the aforementioned container; a step for adding the aforementioned fine particles to the liquid within the aforementioned container either before forming the solution or while forming the solution; and a step for adding the aforementioned organic additive to the liquid within the aforementioned container either before forming the solution or while forming the solution. The method is further characterized in that the ratio of the viscosity of the liquid within the aforementioned container when the aforementioned fine organic additive is added, with respect to the viscosity of the liquid within the aforementioned container when the aforementioned fine particles are added is 1 to 100.